Mixxx - The most powerful free DJ software in the world.
Deckadance - Deckadance is a DJ mixing application that works either as a standalone program OR as a VSTi inside...
Zulu DJ Software - Zulu DJ Software is the best tool for singers and musicians.
VirtualDJ - Virtual DJ Software - MP3 and Video mix software for DJs
Mixmeister - Create custom party mixes, burn CDs, or add special effects to MP3s with this line of DJ software for the novice and pro. Offers free trials and user community.
DJ Mixer Soft - DJ Mixer Professional is the best DJ mixing software for Mac and Windows, Support audio, karaoke and video mixing, automatic DJ mixing, one-click beat-matching, etc.